The paper describes the design and optimization of a broadband GSM test antenna that can be applied for an enlarged frequency range of 850-960 MHz. The antenna is primarily designed as a high performance feed for a compensated compact test range, CCR, as installed at the Munich University of Applied Sciences. But it is also
well suited as standalone antenna for general measurement purposes. The complete design and optimization was performed with the field simulation software CST-Microwave Studio. The finally selected butterfly antenna concept with cavity was manufactured and electrically tested concerning its electrical performance characteristics. It showed rather identical E- and H-plane far-field patterns, provided as required an edge taper at the subreflector
rim at ± 10o of less 0.6 dB and showed a cross-polarization of < -35 dB in the specified angular range of ± 10o. The SWR is = 1.5 within the specified 12 % bandwidth.

Subscribe

About Computer Simulation Technology

CST offers accurate, efficient computational solutions for electromagnetic design and analysis. Our 3D EM simulation software
is user-friendly and enables you to choose the most appropriate method for the design and optimization of devices operating in a wide range of frequencies.